SU65288A1 - Vertical wind turbine with balanced rotary blades - Google Patents

Description

Vertical wind turbines with rotary blades, equipped with transverse balancers, intersecting in space with the axes of rotation of the blades, are already known.

Such wind turbines, when increasing their speed and speed beyond normal, do not, however, have the ability to set the blades to the desired angle of attack, which does not exclude the possibility of damage to the blades, wind wheels or other engine parts.

The proposed wind turbine, the purpose of which is to eliminate the noted deficiency of already known wind turbine designs with rotary blades, has the distinctive feature that to self-install its blades at the desired angle of attack when increasing the number of revolutions above normal, the corresponding springs balancing the excess torque of the centrifugal forces acting on the balancers are used blades.

In FIG. 1 is a schematic front view of an exemplary embodiment of a wind turbine, and FIG. 2 is a top view of one of the engine blades of FIG. one.

Each of the blades 2 rotatable on the ax x / wind wheel is equipped with balance weights 5 in the form of weights mounted on rods x 4, normal to the back plane 5 of the blade, and at equal distances x from it. The axis of the rod 4 intersects in space with the axis (blades 2) at a certain angle close to the direct passage at a small distance from the axis /. Each of the blades 2 with its end facing the axis b of the wind wheel interacts with the end of the helical spring 7, the other end of which is attached to the axis / blade 2. The torque of rotation of the spring 7, which varies depending on the angle of rotation of the blade 2, is selected at the maximum allowed the number of revolutions of the wind wheel to balance the excess torque of the centrifugal forces acting on the balancers 5, and set the blade 2 to the desired angle of attack, warning "separation of the wind turbine, i.e. in the position indicated by the dotted line in FIG. 2